Classification / Names
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Beryciformes (Sawbellies) >
Melamphaidae (Bigscale fishes or ridgeheads)
Etymology: Poromitra: Greek, poros = porous + Greek, mitra = stripe, belt (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Écologie
marin bathypélagique; profondeur 708 - 886 m (Ref. 83717). Temperate
Northeastern Pacific: known only from two catches from 708-886 m. Other possible catches were attributed to P. crassiceps.
Taille / Poids / Âge
Maturity: Lm ?  range ? - ? cm
Max length : 9.4 cm SL mâle / non sexé; (Ref. 83717)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 3; Rayons mous dorsaux (Total) : 12; Épines anales: 7; Rayons mous anaux: 9; Vertèbres: 27. This species is distinguished by its spinulated (without gap) posterior and lower edges of praeoperculum; insertion of ventral fins located slightly behind the vertical of posterior edge of pectoral fin insertion; upper jaw extends to the vertical of posterior eye edge; soft rays in dorsal fin 12, in anal fin 9; 31 rakers at the first gill arch; 27 vertebrae (Ref. 83717).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Kotlyar, A.N., 2008. Revision of the genus Poromitra (Melamphaidae): Part 1. Species of group P. crassiceps. J. Ichthyol. 48(7):479-492. (Ref. 83717)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-2)
Menace pour l'homme
Harmless
Utilisations par l'homme
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Estimates based on models
Preferred temperature (Ref.
123201): 1.7 - 1.9, mean 1.8 °C (based on 94 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01072 (0.00442 - 0.02595), b=3.10 (2.89 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.4 ±0.3 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Faible, temps minimum de doublement de population : 4,5 à 14 années (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).